NPI registry status
Active
2026 NPPES data Sleep Medicine (Internal Medicine) Physician NPI 1568433530 MD
Verify on CMS → Bruce Stewart, MD
Sleep Medicine (Internal Medicine) Physician in Salem, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 932 in Sleep Medicine (Internal Medicine) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
197
Medicare Part D claims · 32 beneficiaries · Sleep Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Bruce Stewart, MD filed 197 Medicare Part D claims in 2024 as a Sleep Medicine (Internal Medicine) Physician in Salem, Virginia, prescribing 83% generic.
- 197
- Part D claims, 2024
- 83%
- generic prescribing
- ≥34th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Bruce Stewart, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1568433530), first enumerated 01/30/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 197 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1568433530 · Sleep Medicine (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1568433530
- ENUM-LEGACY 2006
- TAX-NARROW 932
- RX-LIGHT 197
- BOOK-THIN 28 in Virginia
- PHOTO-ENUM Thomas Chandler, MD · 2006
Bruce Stewart, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
197 ≥ 34th percentile 34% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Bruce Stewart, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Bruce Stewart, MD?
Quality data not reportedPrimary specialty
Sleep Medicine (Internal Medicine) Physician
Medicare Part D claims
197 85% vs specialty avg
Specialty distribution in Virginia
How Sleep Medicine (Internal Medicine) Physician compares to other specialties among Virginia providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Sleep Medicine (Internal Medicine) Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1568433530 |
|---|---|
| Specialty | Sleep Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 01/30/2006 |
Brand vs generic prescribing mix · Typical
Bruce Stewart, MD - brand share 17.0%
Sleep Medicine (Internal Medicine) Physician average
17% brand-name claims vs 83% generic, on 197 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
197
Total Claims
$403K
Total Drug Cost
32
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 231
- Total Day Supply
- 6,850
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $399K
- Generic Drug Cost
- $5K
Patient Demographics
- Average Patient Age
- 70.8 years
- Avg HCC Risk Score
- 1.03
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Bruce Stewart, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Modafinil
Modafinil
46 claims
- Xywav
Xywav
25 claims
- Pramipexole Dihydr…
Pramipexole Dihydrochloride
23 claims
- Clonazepam 18
Clonazepam
18 claims
- Zolpidem Tartrate 18
Zolpidem Tartrate
18 claims
- Trazodone Hcl 12
Trazodone Hcl
12 claims
- Eszopiclone 11
Eszopiclone
11 claims
| Drug | Claims |
|---|---|
| Modafinil | 46 |
| Xywav Sodium,calcium,mag,pot Oxybate | 25 |
| Pramipexole Dihydrochloride Pramipexole Di-Hcl | 23 |
| Clonazepam | 18 |
| Zolpidem Tartrate | 18 |
| Trazodone Hcl | 12 |
| Eszopiclone | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sleep Medicine (Internal Medicine) Physician in VA →
All providers in Virginia →
Compare specialties →
Sleep Medicine (Internal Medicine) Physician Overview
How Bruce Stewart, MD fits within the Sleep Medicine (Internal Medicine) Physician landscape nationally.
932
Sleep Medicine (Internal Medicine) Physician Providers in US
52
States with Sleep Medicine (Internal Medicine) Physician
1,288
Avg Claims per Provider
Bruce Stewart, MD's 197 claims are below the specialty average of 1,288.
Nationwide Sleep Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Stewart, both outside Virginia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Sleep Medicine (Internal Medicine) Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Stewart.
One of 28 Sleep Medicine (Internal Medicine) Physician providers enrolled in Virginia, 5 are shown here.
Dr. Shoaib Alam
MD
Glen Allen, VA
Dr. Sameh Aziz
MD
Roanoke, VA
Dr. Kimberly Bird
M.D.
Danville, VA
Dr. Frank Biscardi
MD
Roanoke, VA
Dr. Moeed Chohan
M.D.
Richmond, VA
Compare Sleep Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Bruce Stewart, MD's specialty? ▼
Bruce Stewart, MD specializes in Sleep Medicine (Internal Medicine) Physician and practices in Salem, Virginia. Credentials: MD.
How much does Bruce Stewart, MD prescribe under Medicare Part D? ▼
In 2024, Bruce Stewart, MD wrote 197 Medicare Part D claims totaling $403K in drug costs for 32 beneficiaries.
Where is Bruce Stewart, MD located? ▼
Bruce Stewart, MD is located at 1802 BRAEBURN DR, Salem, VA, 24153. Phone: (540) 772-5959.
What is Bruce Stewart, MD's NPI number? ▼
Bruce Stewart, MD's National Provider Identifier (NPI) is 1568433530, issued on 01/30/2006.
Does Bruce Stewart, MD prescribe more brand-name or generic drugs? ▼
Bruce Stewart, MD's prescribing is 17% brand-name and 83% generic drugs by claim count, with $399K in brand drug costs.
How many Sleep Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 932 Sleep Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Sleep Medicine (Internal Medicine) Physician provider writes 1,288 Medicare Part D claims per year.
What drugs does Bruce Stewart, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Bruce Stewart, MD's most frequently prescribed drugs include Modafinil, Xywav, Pramipexole Dihydrochloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bruce Stewart, MD accept Medicare? ▼
Bruce Stewart, MD appears in CMS Medicare data with 197 Part D claims and 32 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bruce Stewart, MD's credentials? ▼
Bruce Stewart, MD's NPI is 1568433530 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.